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Proteins and liver function changes in rats following cumulative total body irradiations / Proteínas y cambios de función hepática en ratas tras irradiación corporal total cumulativa
Nwokocha, CR; Nwokocha, M; Mounmbegna, P; Orhue, J; Onyezuligbo, O; Olu-Osifo, EH; Okojie, E; Asuquo, E; Ejimofor, T; Ikenna, N; Judith, M.
  • Nwokocha, CR; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Nwokocha, M; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Mounmbegna, P; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Orhue, J; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Onyezuligbo, O; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Olu-Osifo, EH; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Okojie, E; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Asuquo, E; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Ejimofor, T; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Ikenna, N; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
  • Judith, M; The University of the West Indies. Department of Basic Medical Sciences. Kingston 7. JM
West Indian med. j ; 61(8): 773-777, Nov. 2012. tab
Artigo em Inglês | LILACS | ID: lil-694339
ABSTRACT

OBJECTIVE:

Total body irradiation (TBI) is a choice therapy for the management of some malignancies; it is also a major cause of oxidative stress. The aim of this research is to sequentially document the effect of total body radiation on body function utilizing the sequential changes in liver function enzymes and proteins in rats.

METHODS:

Serum protein and liver enzymes were assessed using kits in rats exposed to total body radiations of 1.27 Gy/minute in cumulative doses to the fourth radiation at five-day intervals.

RESULTS:

Aspartate aminotransferase (AST), alanine transaminase (ALT) and serum protein were significantly (p < 0.05) elevated with increasing radiation. No significant differences between experimental and control groups for bilirubin concentrations were noted at any time. Serum levels of albumin were significantly (p < 0.05) increased with the first to third radiation exposures but reduced at the fourth cumulative dose exposure.

CONCLUSION:

Variations are associated with acute stress, inflammation which could be due to non-specific stress reaction, while fluctuations could arise as a result of tolerance and repair within the liver. These tests are significant for diagnosis of radiation-induced injury and can be important for evaluation of its severity and correct management.
RESUMEN

OBJETIVO:

La irradiación corporal total (ICT) es una terapia de elección para el tratamiento de algunos tumores malignos. También es una de las causas principales del estrés oxidativo. El objetivo de esta investigación es documentar el efecto de la radiación corporal total sobre las funciones corporales utilizando los cambios secuenciales en las enzimas de la función hepática y las proteínas en las ratas.

MÉTODOS:

Se evaluaron las proteínas séricas así como las enzimas hepáticas mediante el uso de kits en ratas expuestas a radiaciones corporales totales de 1.27 Gy/minuto en dosis cumulativas hasta la cuarta radiación con cinco días de intervalo.

RESULTADOS:

La aspartato transaminasa (AST), la alanina aminotransferasa (ALT) y la proteína sérica fueron elevadas significativamente (p < 0.05) con el aumento creciente de la radiación. No hubo diferencias significativas entre el grupo experimental y el grupo control, observándose concentraciones de bilirrubina todo el tiempo. Los niveles séricos de albúmina aumentaron significativamente (p < 0.05) con la primera de tres exposiciones a la radiación, pero experimentaron una reducción a partir de la cuarta exposición de dosis cumulativa.

CONCLUSIÓN:

Las variaciones están asociadas con estrés agudo e inflamación que podría deberse a una reacción a estrés no específico, mientras que las fluctuaciones podrían surgir como resultado de la tolerancia y la regeneración dentro del hígado. Estas pruebas son importantes para el diagnóstico de lesiones inducidas por radiación, así como para la evaluación de la severidad y el tratamiento correcto de las mismas.
Assuntos

Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Lesões Experimentais por Radiação / Irradiação Corporal Total / Fígado Tipo de estudo: Estudo diagnóstico Limite: Animais Idioma: Inglês Revista: West Indian med. j Assunto da revista: Medicina Ano de publicação: 2012 Tipo de documento: Artigo País de afiliação: Jamaica Instituição/País de afiliação: The University of the West Indies/JM

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Lesões Experimentais por Radiação / Irradiação Corporal Total / Fígado Tipo de estudo: Estudo diagnóstico Limite: Animais Idioma: Inglês Revista: West Indian med. j Assunto da revista: Medicina Ano de publicação: 2012 Tipo de documento: Artigo País de afiliação: Jamaica Instituição/País de afiliação: The University of the West Indies/JM